Widgets with gradle

I have strange problem with vaadin widgets. I have defined

JFreeChartWrapper

widget as dependency in build.gradle file as follows:

dependencies{ compile 'org.vaadin.addon:jfreechartwrapper:3.0.2' } I am using vaadin latest version(i.e. version 7.5.9). But when I build my project with the above dependency, it downloads vaadin old jar files (vaadin-server-7.0.1.jar, vaadin-shared-7.0.1.jar, vaadin-theme-compiler-7.0.1.jar) and creates conflicts with latest jar files. The same problem with
ContextMenu
widget also. Do you guys facing similar problem, please let me know how this can be fixed.

Thanks in advance!

PS: I have attached screenshot of what I got! I am pretty sure it is due to conflicts of jar files.
22240.png